Description
Weil McLain 510-218-145 Water Gauge Glass Cocks — Set of 2
Keep your boiler system operating safely and efficiently with the Weil McLain 510-218-145 Water Gauge Glass Cocks. Sold as a set of two, these gauge cocks are purpose-built for use with water gauge glass assemblies on steam and hot water boilers, providing reliable shut-off capability for servicing and replacing gauge glass without taking the entire system offline.
Product Overview
Designed to Weil McLain’s exacting standards, these water gauge glass cocks feature a 1/2″ NPT male inlet connection for straightforward integration with standard boiler gauge glass fittings. The matched set ensures consistent performance at both the top and bottom connections of the gauge glass assembly, maintaining a secure seal and dependable operation in demanding hydronic and steam boiler environments.
Key Features
- OEM Weil McLain replacement part — engineered for precise fit and long-term reliability
- 1/2″ NPT male inlet connections for compatibility with standard gauge glass assemblies
- Sold as a set of 2 — includes both upper and lower gauge cocks for a complete replacement
- Enables safe isolation of the water gauge glass for inspection, cleaning, or replacement
- Durable construction suited for steam and hot water boiler applications
- Direct OEM replacement for Weil McLain boilers requiring gauge glass cock service
Application
These gauge glass cocks are ideal for HVAC technicians, boiler service professionals, and facility maintenance teams working on Weil McLain steam or hot water boilers. Using genuine OEM parts ensures compatibility and helps maintain system warranties and safety certifications.
Specifications
- Part Number: 510-218-145
- Brand: Weil McLain
- Connection Size: 1/2″ NPT Male Inlet
- Quantity: Set of 2
- Application: Water gauge glass assembly on steam/hot water boilers







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